Answer: 3
Step-by-step explanation:
Answer:
1 - 4x
Step-by-step explanation:
First, do multiplication
4 times x is 4x
Then subtract 4x from 1
1 - 4x
Answer:
69
Step-by-step explanation:
Answer:
11) 195312
13) 5461
Step-by-step explanation:
11)
15÷(-3) = -5
(-75)÷15 = -5
375÷(-75) = -5
It’s clear that the common ratio of this geometric sequence is -5
Then using the sum formula for geometric sequences :
……………………………………………………
13)